Answer:
cause-and-effect
Explanation:
Organizing a speech in an effective way helps in providing a clear message to the audience. There are fours main parts in every speech, consisting of an introduction, a body, a transition and a conclusion.
In organizing a speech effectively, six patterns are commonly used. They are :
The cause-and-effect pattern represents how a certain action leads to a particular result or outcome.
In the context, The speech well describes the effects of mosquito bites caused by the West Nile virus.
Thus, the answer is -- cause-and-effect
